carbon emissions

The U.S. Supreme Court, in a 6-3 decision, ruled that the Environmental Protection Agency does not have the authority to mandate carbon emissions from existing power plants.

In the absence of a coordinated state or federal response to climate change, cities around the world have committed to ambitious carbon reduction goals on…

The global slowdown could create a historic drop in carbon emissions, but it's still not enough to avoid the worst impacts of climate change.

The Trump administration is replacing Obama-era fuel economy standards with weaker ones that will allow for more air pollution. Groups are already lining up to challenge the new rule.

More than 1,000 people concerned about climate change turned out for a town hall at Otterbein University in Westerville held by an unlikely alliance of…

The tech giant, which says it has been "carbon neutral" for years, is vowing to go "carbon negative" — by cutting emissions, planting trees and investing in new carbon removal technology.

Carbon emissions from global air travel are rising fast, and U.S. passengers make up the largest share. But some are vowing not to fly at all, motivated by guilt and concern for the environment.

The university, which is as big as a city, has slashed its carbon emissions since 2004. That effort is now paying for itself in lower energy costs. Could actual cities do the same?

Humanity is not on track to avoid the most catastrophic impacts of climate change. Delegations from nearly 200 countries are meeting to discuss promises they made to reduce greenhouse gas emissions.

The lawsuit comes two days after the Trump administration revoked California's ability to set its own rules for automobiles. The state's top prosecutor blasted the move as "arbitrary and capricious."